Hygrophorus atramentosus, is a species of agaric fungus in the family Hygrophoraceae native to Europe.
Grows in summer and autumn in coniferous (mostly spruce), mixed forests with calcareous soils. It differs from other Hygrophorus sp., esp Hygrophorus camarophyllus, in its habitats - the latter grows in pine forests.
The cap is gray, with a metallic shade, 3.5–8 cm in diameter, irregular shape, prominently flat, concave surface. The stipe is 4–6 cm x 8–20 mm. Radially arranged lamellae are white or greyish. Mild smell. Spores 7–8.5 × 4.5-5.5 μm. The mushroom is not edible.[1]